121424111153 has 2 divisors, whose sum is σ = 121424111154. Its totient is φ = 121424111152.

The previous prime is 121424111113. The next prime is 121424111161. The reversal of 121424111153 is 351111424121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70009455649 + 51414655504 = 264593^2 + 226748^2 .

It is a cyclic number.

It is not a de Polignac number, because 121424111153 - 2⁶ = 121424111089 is a prime.

It is not a weakly prime, because it can be changed into another prime (121424111113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60712055576 + 60712055577.

It is an arithmetic number, because the mean of its divisors is an integer number (60712055577).

Almost surely, 2^121424111153 is an apocalyptic number.

It is an amenable number.

121424111153 is a deficient number, since it is larger than the sum of its proper divisors (1).

121424111153 is an equidigital number, since it uses as much as digits as its factorization.

121424111153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 26.

Adding to 121424111153 its reverse (351111424121), we get a palindrome (472535535274).

The spelling of 121424111153 in words is "one hundred twenty-one billion, four hundred twenty-four million, one hundred eleven thousand, one hundred fifty-three".